Individual files can only be extracted from an archive by using a suitable application, such as StuffIt Deluxe or Compact Pro. Compressed files can’t be used by your computer until they’re decompressed.sea whilst StuffIt archives that aren’t self-extracting have an extension of. SEAs usually have a filename extension of. An SEA is a special kind of application that contains both the compressed files and the necessary resources to automatically extract the material. Software may also be supplied in compressed form as a self-extracting archive (SEA), usually of the StuffIt variety, although the older Compact Pro (Compactor) format may also be encountered. If, however, the files are supplied in standard Finder format you can add or replace items by simply dragging them onto your hard disk. To save disk space, most employ compressed data. There are many types of installer, the most common being InstallerVISE (MindVision), StuffIt Installer Maker (Aladdin Systems) and Apple’s own installers. You can then open the first one and proceed with installation as usual. When you’re ready to perform an installation you can just double-click on all the image files, the contents of which will then appear on the desktop as if they were standard diskettes. These can then be kept on a convenient hard disk drive or on a removable cartridge. However, you may have to drag the installer application itself out of the first folder, or apply other tricks to make this work properly.Īlternatively, if you have Apple’s Disk Copy application (as supplied with the Mac OS) you can create a set of disk image files from the diskettes. However, should this be corrupted you won’t be able to perform any part of the installation, so lock the diskettes and make a backup of all them before beginning the installation.įor a faster installation you may be able to copy the diskettes onto your drive, so that they then appear as folders, and then run the installation. If you have to use diskettes you’ll find the installer application on the first disk. If possible, always try to get new software supplied on CD-ROM. Installing software from a set of floppy disks is horribly slow. However, many people disregard this and probably avoid complications in the process. Sometimes you’re recommend to disable extensions prior to using an installer.Those of a brave disposition can of course use Apple’s TomeViewer application to extract individual files from an installer’s archive, assuming that the installer in question uses files of the Apple variety. In some instances these files may also be found on the application’s installer disk. If you really don’t want to use an installer, and you know exactly what you’re doing, you should be able to copy the appropriate files from another computer that already has the software installed. And if you’re really nervous you should also backup all your other files as well. Since things sometimes go horribly wrong, you should always make a copy of the installation software before you start. Modern software is often supplied in the form of an installer application that places the new application and its support files onto your hard disk in the appropriate places. Carbonized applications can’t be used in older versions of the Mac OS or where CarbonLib is missing or outdated.These are built into Mac OS X and into the CarbonLib extension that Apple provides for the Classic Mac OS. Programs requiring a 680x0-based floating point unit (FPU) don’t work on a PowerPC-based machine unless you install SoftwareFPU (see below).Ī Carbonized application, which can be used fully in both the Classic Mac OS and in Mac OS X, employs a reduced set of application programming interfaces (APIs) known as Carbon.
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